It’s always good to have a torch on hand for emergencies. Unfortunately, sometimes these torches can be forgotten, and wind up with dead batteries when you need them most. For those cases, this build ...

Here is a tried and tested design of an ultra-simple emergency torch built around the inexpensive dc-dc converter chip MC34063. Beyond a handful of simple components, a lithium coin cell and a small ...

National Emergency Management Agency (Nema) recommends a small bag for each person with essentials, such as sturdy walking shoes, warm clothes, raincoat and hat, water and snack food, hand sanitiser, ...